1 files changed, 130 insertions, 0 deletions
diff --git a/khexedit/lib/kbufferranges.h b/khexedit/lib/kbufferranges.h
new file mode 100644
index 0000000..ed2cbce
--- /dev/null
+++ b/khexedit/lib/kbufferranges.h
@@ -0,0 +1,130 @@
+/***************************************************************************
+                          kbufferranges.h  -  description
+                             -------------------
+    begin                : Sun Jun 22 2003
+    copyright            : (C) 2003 by Friedrich W. H. Kossebau
+    email                : Friedrich.W.H@Kossebau.de
+ ***************************************************************************/
+
+/***************************************************************************
+ *                                                                         *
+ *   This library is free software; you can redistribute it and/or         *
+ *   modify it under the terms of the GNU Library General Public           *
+ *   License version 2 as published by the Free Software Foundation.       *
+ *                                                                         *
+ ***************************************************************************/
+
+
+#ifndef KHE_KBUFFERRANGES_H
+#define KHE_KBUFFERRANGES_H
+
+// lib specific
+#include "kbufferlayout.h"
+#include "kselection.h"
+#include "ksectionlist.h"
+#include "kcoordrangelist.h"
+
+namespace KHE
+{
+
+/** a class to control all the ranges like marking and selections
+  * holds also all modified ranges and merges them so a repaint can take its info from here
+  *
+  * @author Friedrich W. H.  Kossebau
+  */
+class KBufferRanges
+{
+  public:
+    KBufferRanges( KBufferLayout *L );
+    ~KBufferRanges();
+
+  public: // modifcation access
+    void setMarking( KSection M );
+    void setSelectionStart( int StartIndex );
+    void setSelectionEnd( int StartIndex );
+    void setSelection( KSection S );
+    /** */
+    void setFirstWordSelection( KSection S );
+    /** */
+    void ensureWordSelectionForward( bool Forward );
+
+    /** removes marking and returns true if something changed */
+    void removeMarking();
+    /** removes selection with id and returns true if something changed */
+    void removeSelection( int id = 0 );
+    /** removes all but the standard selection and returns true if something changed */
+    void removeFurtherSelections();
+
+    void addChangedRange( KSection S );
+    void addChangedRange( int SI, int EI );
+    void addChangedRange( const KCoordRange &NewRange );
+    void resetChangedRanges();
+
+    void setModified( bool M = true );
+    /** removes all ranges */
+    void reset();
+
+  public: // value access
+    int noOfSelections() const;
+    int selectionStart() const;
+    int selectionEnd() const;
+    KSection selection() const;
+    KSection firstWordSelection() const;
+    int selectionLength() const;
+    bool isModified() const;
+
+  public: // calculated logic access
+    bool hasSelection() const;
+    bool hasMarking() const;
+    bool selectionStarted() const;
+    bool selectionJustStarted() const;
+    bool hasFirstWordSelection() const;
+    bool selectionIncludes( int Index ) const;
+    bool markingIncludes( int Index ) const;
+    // TODO: next three are deprecated
+    bool overlapsSelection( int FirstIndex, int LastIndex, int *SI, int *EI ) const;
+    bool overlapsMarking( int FirstIndex, int LastIndex, int *SI, int *EI ) const;
+//    bool overlapsChanges( int FirstIndex, int LastIndex, int *SI, int *EI ) const;
+//    bool overlapsChanges( KSection Indizes, KSection *ChangedRange ) const;
+    bool overlapsChanges( const KCoordRange &Range, KCoordRange *ChangedRange ) const;
+    const KSection *firstOverlappingSelection( KSection Range ) const;
+    const KSection *overlappingMarking( KSection Range ) const;
+
+
+  protected:
+    /** true if something changed */
+    bool Modified;
+
+    KSection Marking;
+    KSelection Selection;
+    /** memories first selected word on wordwise selection */
+    KSection FirstWordSelection;
+
+    KCoordRangeList ChangedRanges;
+
+    KBufferLayout *Layout;
+};
+
+
+inline int KBufferRanges::noOfSelections()  const { return 1; }
+
+inline int KBufferRanges::selectionStart()  const { return Selection.start(); }
+inline int KBufferRanges::selectionEnd()    const { return Selection.end(); }
+inline KSection KBufferRanges::selection()  const { return Selection; }
+inline KSection KBufferRanges::firstWordSelection()  const { return FirstWordSelection; }
+inline int KBufferRanges::selectionLength() const { return Selection.width(); }
+inline bool KBufferRanges::isModified()     const { return Modified; }
+
+inline bool KBufferRanges::hasSelection()             const { return Selection.isValid(); }
+inline bool KBufferRanges::selectionStarted()         const { return Selection.started(); }
+inline bool KBufferRanges::selectionJustStarted()     const { return Selection.justStarted(); }
+inline bool KBufferRanges::hasFirstWordSelection()    const { return FirstWordSelection.isValid(); }
+inline bool KBufferRanges::hasMarking()               const { return Marking.isValid(); }
+inline bool KBufferRanges::selectionIncludes( int Index ) const { return Selection.includes( Index ); }
+inline bool KBufferRanges::markingIncludes( int Index )   const { return Marking.includes( Index ); }
+
+inline void KBufferRanges::setModified( bool M )           { Modified = M; }
+
+}
+
+#endif